LED light bulb



FIG. 1 is a front perspective view of a LED light bulb showing my new design;

FIG. 2 is a front view thereof, the left side view, the right side view and the rear being the same;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof.

The broken line showing of the bottom portion is included for the purpose of illustrating only and forms no part of the claimed design. 

CLAIM The ornamental design for an LED light bulb, as shown and described. 